The first one is RANK ERROR, the latter three are all SYNTAX ERROR. The
six-space indent for user input looks odd now that I'm so used to J.
Hey - I can cut and paste the APL code and it looks ok in my outgoing
message - how does it look to everyone else?
{(+/⍵)÷⍴⍵}a
RANK ERROR
{(+/⍵)÷⍴⍵}a
∧
{(+/⍵)÷⍴⍵}[0]a
SYNTAX ERROR
{(+/⍵)÷⍴⍵}[0]a
∧
{(+/⍵)÷⍴⍵}[1]a
SYNTAX ERROR
{(+/⍵)÷⍴⍵}[1]a
∧
{(+/⍵)÷⍴⍵}[2]a
SYNTAX ERROR
{(+/⍵)÷⍴⍵}[2]a
∧
On 10/25/07, Roger Hui <[EMAIL PROTECTED]> wrote:
>
> The Vector front page says that the Dyalog function
> {(+/omega)divide rho omega}
> is the same as the J tacit verb
> (+/%#)
> They are not the same. One difference comes from
> the difference between # and rho; another difference
> is between +/ in J and +/ in APL (+/ in J is + slashbar
> in APL); another is the difference in the way they are
> used in operator expressions. (e.g. (+/%#)"r a).
>
> Can someone with access to Dyalog APL tell me
> what the following does? (index origin 0)
>
> a {is} ? 3 5 7 {rho} 100
> {(+/omega) divide rho omega} a
> {(+/omega) divide rho omega}[0] a
> {(+/omega) divide rho omega}[1] a
> {(+/omega) divide rho omega}[2] a
>
...
--
Devon McCormick, CFA
^me^ at acm.
org is my
preferred e-mail
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